Qizheng Xing b83bf0717e 8360192: C2: Make the type of count leading/trailing zero nodes more precise ...

Reviewed-by: qamai, epeter, jbhateja

2025-12-08 13:16:39 +00:00

..

overhead

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

pea

8312420: Integrate Graal's blender micro benchmark

2023-08-01 10:48:38 +00:00

x86

8020282: Generated code quality: redundant LEAs in the chained dereferences

2025-06-19 09:36:29 +00:00

AddIdealNotXPlusC.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

AllocationMerges.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

ArrayAllocation.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

ArrayBoundCheckRemoval.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

ArrayClear.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

ArrayFill.java

8356869: RISC-V: Improve tail handling of array fill stub

2025-05-14 08:28:11 +00:00

ArrayStoreCheck.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

AutoVectorization2DArray.java

8364597: Replace THL A29 Limited with Tencent

2025-08-08 02:27:30 +00:00

BitSetAndReset.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

BitTest.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

ClearMemory.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

CodeCacheStress.java

8309976: Add microbenchmark for stressing code cache

2023-06-30 15:02:45 +00:00

ConstructorBarriers.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

CopyLoop.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

CountedLoopCastIV.java

8357726: Improve C2 to recognize counted loops with multiple casts in trip counter

2025-06-25 01:16:08 +00:00

CountLeadingZeros.java

8360192: C2: Make the type of count leading/trailing zero nodes more precise

2025-12-08 13:16:39 +00:00

DivRem.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

DMBCheck.java

8355233: Add a DMB related benchmark

2025-04-22 19:59:41 +00:00

Explosion.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

FinalFieldInitialize.java

8325821: [REDO] use "dmb.ishst+dmb.ishld" for release barrier

2024-06-10 12:57:03 +00:00

FloatingScalarVectorAbsDiff.java

8292587: AArch64: Support SVE fabd instruction

2022-09-13 02:19:02 +00:00

FpMinMaxIntrinsics.java

8287087: C2: perform SLP reduction analysis on-demand

2023-04-27 09:39:53 +00:00

IfMinMax.java

8324655: Identify integer minimum and maximum patterns created with if statements

2024-03-25 06:23:11 +00:00

IndexVector.java

8311178: JMH tests don't scale well when sharing output buffers

2023-07-11 16:14:33 +00:00

InnerClassNullRef.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

InterfaceCalls.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

InterfacePrivateCalls.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

IterativeEA.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

LeadingZeros.java

8350468: x86: Improve implementation of vectorized numberOfLeadingZeros for int and long

2025-11-10 06:16:02 +00:00

LoopLocals.java

8279888: Local variable independently used by multiple loops can interfere with loop optimizations

2022-04-25 09:30:00 +00:00

LoopSafepoint.java

8347499: C2: Make PhaseIdealLoop eliminate more redundant safepoints in loops

2025-11-06 10:56:48 +00:00

LoopUnroll.java

8364597: Replace THL A29 Limited with Tencent

2025-08-08 02:27:30 +00:00

LShiftIdeal_XPlusX_LShiftC.java

8278114: New addnode ideal optimization: converting "x + x" into "x << 1"

2022-01-05 00:38:59 +00:00

LShiftNodeIdealize.java

8303238: Create generalizations for existing LShift ideal transforms

2023-03-13 11:10:42 +00:00

MacroLogicOpt.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

MathExact.java

8346989: C2: deoptimization and re-execution cycle with Math.*Exact in case of frequent overflow

2025-04-07 05:21:44 +00:00

MaxMinOptimizeTest.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

MergeLoadBench.java

8349142: [JMH] compiler.MergeLoadBench.getCharBV fails

2025-02-02 02:46:16 +00:00

MergeStoreBench.java

8343629: More MergeStore benchmark

2025-01-08 09:40:17 +00:00

MergeStores.java

8349943: [JMH] Use jvmArgs consistently

2025-02-20 01:33:58 +00:00

ModPowerOf2.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

MulNodeIdealize.java

8291336: Add ideal rule to convert floating point multiply by 2 into addition

2022-10-28 10:04:38 +00:00

Multiplication.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

NotOpTransformation.java

8281453: New optimization: convert ~x into -1-x when ~x is used in an arithmetic expression

2022-10-06 22:15:20 +00:00

PhiDuplicatedConversion.java

8316918: Optimize conversions duplicated across phi nodes

2023-10-16 12:52:01 +00:00

PointerBenchmarkFlat.java

8286401: Address possibly lossy conversions in Microbenchmarks

2022-05-11 20:51:57 +00:00

PopCount.java

8333382: [s390x] Enhance popcnt Instruction to use Z15 facilities

2024-06-12 13:24:58 +00:00

PostAllocationStores.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

RangeCheckHoisting.java

8291669: [REDO] Fix array range check hoisting for some scaled loop iv

2022-09-14 14:20:39 +00:00

RBTreeSearch.java

8305995: Footprint regression from JDK-8224957

2023-04-17 12:22:26 +00:00

Rotation.java

8314085: Fixing scope from benchmark to thread for JMH tests having shared state

2023-10-03 16:01:36 +00:00

SecondarySuperCacheHits.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

SecondarySuperCacheInterContention.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

SecondarySuperCacheIntraContention.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

SerialAdditions.java

8347555: [REDO] C2: implement optimization for series of Add of unique value

2025-10-10 14:04:51 +00:00

SharedLoopHeader.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

Signum.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

SkipIntToLongCast.java

8248870: AARCH64: I2L/L2I conversions can be skipped for masked positive values

2020-07-24 08:21:11 -04:00

SparseCodeCache.java

8350852: Implement JMH benchmark for sparse CodeCache

2025-04-06 17:38:28 +00:00

SpillCode.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

StoreAfterStore.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

Straighten.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

StringConstructorBenchmark.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

SubIdealC0Minus_YPlusC1_.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

TestEor3.java

8293488: Add EOR3 backend rule for aarch64 SHA3 extension

2022-11-29 17:17:15 +00:00

TypeVectorOperations.java

8329077: C2 SuperWord: Add MoveD2L, MoveL2D, MoveF2I, MoveI2F

2025-09-03 06:38:27 +00:00

UnsignedComparison.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

VectorAliasing.java

8324751: C2 SuperWord: Aliasing Analysis runtime check

2025-08-28 05:53:23 +00:00

VectorAlignment.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

VectorAutoAlignment.java

8355094: Performance drop in auto-vectorized kernel due to split store

2025-05-20 13:51:47 +00:00

VectorAutoAlignmentVisualization.java

8355094: Performance drop in auto-vectorized kernel due to split store

2025-05-20 13:51:47 +00:00

VectorBitCount.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

VectorIntMinMax.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

VectorLoadToStoreForwarding.java

8342958: Use jvmArgs consistently in microbenchmarks

2024-10-28 22:40:25 +00:00

VectorReduction2.java

8340093: C2 SuperWord: implement cost model

2025-11-10 15:56:49 +00:00

VectorReduction.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

VectorReductionFloatingMinMax.java

8345795: Update copyright year to 2024 for hotspot in files where it was missed

2024-12-10 08:47:46 +00:00

VectorShiftAccumulate.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

VectorShiftRight.java

8291729: Reduce runtime of vm.compiler microbenchmarks

2022-08-03 18:01:26 +00:00

VectorSignum.java

8287903: Reduce runtime of java.math microbenchmarks

2022-06-09 13:11:15 +00:00

VectorStoreToLoadForwarding.java

8334431: C2 SuperWord: fix performance regression due to store-to-load-forwarding failures

2024-11-20 14:23:57 +00:00

VectorThroughputForIterationCount.java

8344118: C2 SuperWord: add VectorThroughputForIterationCount benchmark

2024-11-27 09:15:57 +00:00

VectorTwoShorts.java

8359419: AArch64: Relax min vector length to 32-bit for short vectors

2025-07-22 09:06:02 +00:00

WriteBarrier.java

8346470: Improve WriteBarrier JMH to have old-to-young refs

2025-03-13 18:32:15 +00:00